/// <summary>
/// Creates a new instance for the BPMN <see cref="XDocument"/>.
/// </summary>
/// <param name="doc">The BPMN document to parse.</param>
public BpmnDocument(XDocument doc)
{
Elements = new Dictionary <string, BpmnElement>();
Diagrams = new List <BpmnDiagram>();
TopLevelDiagrams = new List <BpmnDiagram>();
ElementToDiagram = new Dictionary <BpmnElement, BpmnDiagram>();
Messages = new List <string>();
// parse the XML file
var callingElements = new List <BpmnElement>();
RecursiveElements(doc.Root, null, callingElements);
// collect all elements that are linked to from a plane
foreach (var diagram in Diagrams)
{
try {
var planeElement = diagram.Plane.Element;
ElementToDiagram[planeElement] = diagram;
} catch (ArgumentException) {
Messages.Add("Tried to add a diagram with the already existing id: " + diagram.Id);
}
}
// collect all diagrams where the plane corresponds to a Top Level BpmnElement (Process/Choreography/Collaboration)
foreach (var diagram in Diagrams)
{
BpmnDiagram parent = null;
var element = diagram.Plane.Element;
var elementName = element.Name;
if (elementName == BpmnDiConstants.ProcessElement || elementName == BpmnDiConstants.ChoreographyElement || elementName == BpmnDiConstants.CollaborationElement)
{
TopLevelDiagrams.Add(diagram);
foreach (var callingElement in callingElements)
{
if (callingElement.CalledElement == element.Id)
{
parent = callingElement.GetNearestAncestor(ElementToDiagram);
if (parent != null)
{
parent.AddChild(diagram, callingElement);
}
}
}
foreach (var child in diagram.Plane.Element.Children)
{
CollectChildDiagrams(child, diagram);
}
}
}
}
/// <summary>
/// Collect all <see cref="BpmnDiagram"/> where the plane corresponds to a <see cref="BpmnElement"/> in <paramref name="diagram"/>.
/// </summary>
/// <param name="bpmnElement">The element to check.</param>
/// <param name="diagram">The diagram to collect the child diagrams for.</param>
private void CollectChildDiagrams(BpmnElement bpmnElement, BpmnDiagram diagram)
{
var currentDiagram = diagram;
if (ElementToDiagram.ContainsKey(bpmnElement))
{
var childDiagram = ElementToDiagram[bpmnElement];
diagram.AddChild(childDiagram, bpmnElement);
currentDiagram = childDiagram;
}
foreach (var child in bpmnElement.Children)
{
CollectChildDiagrams(child, currentDiagram);
}
if (bpmnElement.Process != null && Elements.ContainsKey(bpmnElement.Process))
{
BpmnElement process = Elements[bpmnElement.Process];
CollectChildDiagrams(process, currentDiagram);
}
}